Change force_remove_source_branch to bool

Author: jezhodges

scm/driver/gitlab/testdata/webhooks/pull_request_close.json

@@ -37,7 +37,7 @@
     "merge_commit_sha": null,
     "merge_error": null,
     "merge_params": {
-      "force_remove_source_branch": "0"
+      "force_remove_source_branch": false
     },
     "merge_status": "can_be_merged",
     "merge_user_id": null,

scm/driver/gitlab/testdata/webhooks/pull_request_comment_create.json

@@ -69,7 +69,7 @@
     "merge_commit_sha": null,
     "merge_error": null,
     "merge_params": {
-      "force_remove_source_branch": "0"
+      "force_remove_source_branch": false
     },
     "merge_status": "can_be_merged",
     "merge_user_id": null,

scm/driver/gitlab/testdata/webhooks/pull_request_create.json

@@ -37,7 +37,7 @@
     "merge_commit_sha": null,
     "merge_error": null,
     "merge_params": {
-      "force_remove_source_branch": "0"
+      "force_remove_source_branch": false
     },
     "merge_status": "unchecked",
     "merge_user_id": null,

scm/driver/gitlab/testdata/webhooks/pull_request_merge.json

@@ -37,7 +37,7 @@
     "merge_commit_sha": "78a76ee6b4992a6baf64c59fc4c44c7323d60438",
     "merge_error": null,
     "merge_params": {
-      "force_remove_source_branch": "0"
+      "force_remove_source_branch": false
     },
     "merge_status": "can_be_merged",
     "merge_user_id": null,

scm/driver/gitlab/testdata/webhooks/pull_request_reopen.json

@@ -37,7 +37,7 @@
     "merge_commit_sha": null,
     "merge_error": null,
     "merge_params": {
-      "force_remove_source_branch": "0"
+      "force_remove_source_branch": false
     },
     "merge_status": "can_be_merged",
     "merge_user_id": null,

scm/driver/gitlab/testdata/webhooks/review_comment_create.json

@@ -96,7 +96,7 @@
     "merge_commit_sha": null,
     "merge_error": null,
     "merge_params": {
-      "force_remove_source_branch": "0"
+      "force_remove_source_branch": false
     },
     "merge_status": "can_be_merged",
     "merge_user_id": null,

scm/driver/gitlab/webhook.go

@@ -432,7 +432,7 @@ type (
 			MergeCommitSha interface{} `json:"merge_commit_sha"`
 			MergeError     interface{} `json:"merge_error"`
 			MergeParams    struct {
-				ForceRemoveSourceBranch string `json:"force_remove_source_branch"`
+				ForceRemoveSourceBranch bool `json:"force_remove_source_branch"`
 			} `json:"merge_params"`
 			MergeStatus               string      `json:"merge_status"`
 			MergeUserID               interface{} `json:"merge_user_id"`
@@ -689,7 +689,7 @@ type (
 			MergeCommitSha interface{} `json:"merge_commit_sha"`
 			MergeError     interface{} `json:"merge_error"`
 			MergeParams    struct {
-				ForceRemoveSourceBranch string `json:"force_remove_source_branch"`
+				ForceRemoveSourceBranch bool `json:"force_remove_source_branch"`
 			} `json:"merge_params"`
 			MergeStatus               string      `json:"merge_status"`
 			MergeUserID               interface{} `json:"merge_user_id"`